Tachyonic dark matter

Details Tachyonic dark matter Tachyonic dark matter

2004-03-02

arxiv.org/abs/astro-ph/0403048v1

Int.J.Theor.Phys. 43 (2004) 141-149

Astronomy and Astrophysics

Astrophysics

10 pages, no figures, research paper

Scientific paper

10.1023/B:IJTP.0000028856.08511.

Recent attempts to explain the dark matter and energy content of the universe have involved some radical extensions of standard physics, including quintessence, phantom energy, additional space dimensions and variations in the speed of light. In this paper I consider the possibility that some dark matter might be in the form of tachyons. I show that, subject to some reasonable assumptions, a tachyonic cosmological fluid would produce distinctive effects, such as a surge in quantum vacuum energy and particle creation, and a change in the conventional temperature-time relation for the normal cosmological material. Possible observational consequences are discussed.

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